@canboat/canboatjs/lib/canId.test.js

Native javascript version of canboat

const { encodeCanId, parseCanId, parseEncode } = require('./canId')

/* globals describe test expect */

describe('parseCanId', () => {
  test('Return object with canId broken into properties', () => {
    expect(parseCanId(0x18eeff01)).toEqual({
      canId: 0x18eeff01, dst: 255, src: 1, pgn: 60928, prio: 6,
    })
    expect(parseCanId(0xCF004EE)).toEqual({
      canId: 0xCF004EE, dst: 255, src: 0xEE, pgn: 0xF004, prio: (0xC >> 2),
    })
    expect(parseCanId(0x18ea2301)).toEqual({
      canId: 0x18ea2301, dst: 35, src: 0x01, pgn: 0xEA00, prio: 6,
    })
    expect(parseCanId(0x09F8017F)).toEqual({
      canId: 0x09F8017F, dst: 255, src: 127, pgn: 129025, prio: 2,
    })
    expect(parseCanId(0x0DF8057F)).toEqual({
      canId: 0x0DF8057F, dst: 255, src: 127, pgn: 129029, prio: 3,
    })
  })
})
describe('encodeCanId', () => {
  test('Return canId number from object', () => {
    expect(encodeCanId({ src: 1, pgn: 60928, prio: 6, dst: 255 }).toString(2))
      .toBe(0x18eeff01.toString(2))
    expect((encodeCanId({ src: 238, pgn: 61444, prio: 3 })))
      .toBe((0xCF004EE))
  })
})

describe('parseEncode', () => {
  test('Return exactly same number after parse and encode', () => {
    expect(parseEncode(0x18eeff01)).toBe(0x18eeff01)
    expect(parseEncode(0xCF004EE)).toBe(0xCF004EE)
    expect(parseEncode(0x18ea2301)).toBe(0x18ea2301)
    expect(parseEncode(0x09F8017F)).toBe(0x09F8017F)
    expect(parseEncode(0x0DF8057F)).toBe(0x0DF8057F)
  })
})